Island



.No. BIZ-884 Patented Oct. 25, I898. L. c. WERNER.

NUT LOCK.

(Application filed Apr. 17, 1897.: Modem 2 Sheets-Sheet l.

Patented Oct. 25, l898.

L. C. WERNER.

NUT LOCK.

(Application filed Apr. 17, 1897.:

2 Sheets-Sheet 2.

(No ModaL) uwa, wAsvimm'ou o c The sliding bolt 0 is provided with the slot 01,

QNITED STATES PATENT OFFICE.

' LOUIS O. \VERNER, OF PROVIDENCE, RIIODE ISLAND.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 612,884, dated October 25,1898.

Application filed April 17, 1897.

To all whom itmaly concern.-

Be it known that I, LOUIS O. WERNER, a citizen of the United States, residing at Providence, in the State of Rhode Island, have invented a new and useful Improvement in Nut- Locks and Means for Turning the Nut, of which the following is a specification.

My invention relates to an improved nutlock adapted for carriage-axles; and it consists in the improved construction and arrangernent of the lock for the nut, as hereinafter fully set forth.

In the accompanying drawings, Figure 1 represents an end view showing my improved nut-lock. Fig. 2 represents a longitudinal section taken in the. line 2 2 of Fig. 1. Fig. 3 represents a side view of the carriage-axle. Fig. 4 represents an end view showing a modification in the construction of the nut-lock. Fig. 5 represents a face view of the wrench employed to actuate the nut, with a portion of the perforated front plate broken away. Fig. 6 represents a side view of the same. Fig. 7 represents a back view of the wrench. Fig. 8 represents a section taken in the line 8 8 of Fig. 6. Fig. 9 represents an axial section showing the axle and nut, with the wrench in position for the removal of the nut. Fig. 10 represents the top view of a wrench of different construction from that shown in Figs. 5 and 6. Fig. 11 represents a section taken in the line 11 11 of Fig. 10. Fig. 12 represents an end view of the wrench. Fig. 13 represents the side View, and Fig. 14 a face view, of a lock-nut adapted for the wrench shown in Figs. 10 and 11.

In the drawings, A represents the carriageaxle, and B the nut, the said axle being provided with a central chamber a, in which is placed the spiral spring b and sliding bolt 0.

adapted to receive the pin e, which serves to retain the said bolt in the chamber a, and the bolt 0 is also provided with a head f, having upon its periphery the locking projections g, which are preferably inclined from the plane of the longitudinal axis of the bolt 0, the normal position of the head f being slightly beyond the end of the carriage-axle A, as shown in Fig. 3. The nut Bis provided with the square portion h, the circular flange z, and with the intermediate recess 3, adapted for the $eria1 No. 632,657. a. model.)

locking attachment of a specially-constructed wrench to the nut. The nut Bis also provided with the screw-thread 70, adapted to lit the screw-thread 76' of the carriage-axle, and with an opening Z at its outer side, the said opening being adapted to receive and loosely fit the peripheral contour of the head f of the sliding bolt 0, so that when the nut B is held upon the axle A, as shown in Fig. 2, it will be effectually locked in position by means of the peripheral locking projections g of the head f of the bolt 0, which fit into corresponding grooves g, made in the sides of the opening In order to properly manipulate a nut-lock so constructed for the attachment or removal of the nut, I provide a wrench C, Figs. 5 and 6, having at its forward face a plate on, provided with asquare opening a, adapted to pass over the square portion h of the nut and to be turned into locking engagement with the corner 0 of thenut B, as illustrated in Fig. 5, the sides of the nut being represented in dotted lines, and after the Wrench 0 has been brought into such locking engagement then by turning the thumb-screw p of the wrench the locking-bolt'c can be forced backward against the action of the spring I) from the locking position shown in Fig. 2 to the position shown in Fig. 9, in'which the bolt 0 is out of locking engagement with the nut, so that the nut may then be unscrewed from the axle by means of the wrench, as usual. The nut may also be screwed onto the axle by means of the wrench C, and after the nut has been brought up to its shoulder q then by turning the thumb-screwp backward the bolt 0 will be caused to follow up the retreating screw andthe projections of the head f will pass into engagement with the corresponding recesses of the opening Z of the nut, thus looking the nut upon the axle.

The plate m at the forward face of the wrench O is secured by means of the screws 0' to the four posts 5 s of the wrench, which are adapted to engage with the sides of the nut, as shown by the dotted lines in Fig. 5. The thumb-screw p is provided with a checknut w, by means of which the screw may be held in its set position, and a sliding pin t is provided for engaging with the corner 0 of the nut to hold the same in such position relatively to the opening n in the plate m that the nut will not drop out of the wrench when removed from the axle, the said pin 25 being held in position by means of the spring 1).

The outward movement of the bolt tends to cause the tightening of the nut upon the axle on account of the inclined position of the projections g of the head f.

A modification is shown in the end View, Fig. 4, in which the opening Z is made in elongated form, as shown, the sliding bolt 0 having a head f of corresponding form, and the sides of the said opening and of the head f being inclined, as indicated by the dotted lines, to cause the proper holding of the nut to its seat without backlash.

A modification in the form of the nut B is shown in Figs. 13 and 14:, and a suitable wrench therefor is shown in Figs. 10 and 11, the said nut B having its corners cut away, so that the nut will be square upon the outer side and octagonal upon the inner side, the jaws E and E of the wrench 0 being made in corresponding form to interlock with the beveled corners 0' of the nut, in order that the screw 19 of the Wrench may serve to force back the bolt 0 against the outward action of the spring 1) without causing the removal of the wrench from its proper position for turning the nut.

I claim as my invention- 1. In a nut-lock for axles, the combination of the axle provided at its end with an exterior screw-thread and a central chamber, and the spring-actuated sliding bolt retained in said chamber and adapted for limited longitudinalmovement therein, and having ahead provided with locking projections, with the nut provided with the square portion, the circular flange and the intermediate recess adapted for the locking attachment of the Wrench to the nut, and a screw-thread fitting the screw-thread of the axle, and having at its outer face an opening which loosely fits the locking projections of the head of the sliding bolt, and serves to prevent the accidental backward rotation of the nut substantially as described.

2. In a nut-lock for axles the combination of the axle provided at its end with an exterior screw-thread and a central chamber, and the spring-actuated sliding bolt retained in said chamber and adapted for limited longitudinal movement therein, and having a head provided with looking projections formed at an inclination with the plane of the axis of the bolt, with the nut provided with a screwthread fitting the screw-thread of the axle, and having at its outer face an opening which loosely fits the inclined locking projections of the head of the sliding bolt and serves to cause the proper full seating of the nut without backlash and prevents the accidental backward rotation of the same, substantially as described.

ion-1s c. WERNER.

Witnesses:

SooRATns SoHoLFIELn, HARRY J. GAROEAU. 

